5 | 6 | 7 | 8 |
Symptoms: Failure in sound and indication of the transmitter (Checking the transmitter)
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| Connect the AC adaptor while holding the POWER switch |
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START | and the INPUT switch of the transmitter pressed. | |
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Did all the LEDs light up | No | Check the power source (AVCC). | ||
Check the peripheries of the LED | ||||
in order? |
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| drive TR and of microcomputer (IC4). | ||
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Yes
Disconnect the AC adaptor.
Connect the AC adaptor while holding the POWER switch and the ProLogic II switch of the transmitter pressed.
Is noise output from |
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| Check the peripheries of the following: |
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No | headphone output (IC10), filter (IC9), |
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the headphone terminal? |
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| DSP (IC2), DECODER (IC1), and |
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| D/A (IC8). |
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| Yes |
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Is the VCOT circuit | No |
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| Check the peripheries of IC11 and IC12. | |||||
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oscillating? (TP9) |
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| Yes |
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Is the | No | Check the peripheries of IC3, | |
normal? |
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| and of the |
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Yes
POWER-OFF
A
B
C
D
E
F
5 | 6 |
29
7 | 8 |